I was trying to get it in my screenshot but just couldn't it with Quicksilver also... but I've got dock folders that I use like that. I've got a dev one that has a VNC and TS client, Xcode, and a few other random things.

Nothing to see here. All I ever have running is generally Xcode, Safari ( for documentation + man pages via Sogudi, since I don't have internet access at home ), & TextMate. On my pissant 1024x768 monitor, I never actually *see* my desktop, and I generally keep my Dock hidden.